package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.OrderService;

import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import io.jsonwebtoken.lang.Collections;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CancellationException;
import java.util.stream.Collectors;

@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderDetailMapper orderDetailMapper;

    @Autowired
    private AddressBookMapper addressBookMapper;

    @Autowired
    private ShoppingCartMapper shoppingCartMapper;

    @Autowired
    private WeChatPayUtil weChatPayUtil;

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private WebSocketServer webSocketServer;

    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    /**
     * @Description : 用户下单
     *  * @param ordersSubmitDTO
     * @Return : com.sky.vo.OrderSubmitVO
     */
    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {

        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if(addressBook == null){
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        //checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());

        ShoppingCart shoppingCart = new ShoppingCart();
        Long id = BaseContext.getCurrentId();
        shoppingCart.setUserId(id);
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);
        if(shoppingCartList.size()==0 || shoppingCartList==null){
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPayStatus(Orders.UN_PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        orders.setUserId(id);
        orderMapper.insert(orders);

        List<OrderDetail> orderDetailList = new ArrayList<OrderDetail>();
        for (ShoppingCart cart : shoppingCartList){
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);

        shoppingCartMapper.deleteByUserId(id);

        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderTime(orders.getOrderTime())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .build();
        return orderSubmitVO;
    }

    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    /*
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }*/

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO   payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);


        JSONObject jsonObject = new JSONObject();
        //调用微信支付接口，生成预支付交易单
//        JSONObject jsonObject = weChatPayUtil.pay(
//                ordersPaymentDTO.getOrderNumber(), //商户订单号
//                new BigDecimal(0.01), //支付金额，单位 元
//                "苍穹外卖订单", //商品描述
//                user.getOpenid() //微信用户的openid
//        );
//
        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        //jsonObject.put("code","ORDERPAID");


        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        paySuccess(ordersPaymentDTO.getOrderNumber());


        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

        Map map = new HashMap();
        map.put("type",1);
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号："+outTradeNo);
        String jsonString = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(jsonString);
    }

    /**
     * @Description : 查询历史订单
     * @param pageNum
     * @param pageSize
     * @param status
     * @Return : com.sky.result.Result<com.sky.result.PageResult>
     */
    @Override
    public PageResult pageQuery4Users(int pageNum, int pageSize, Integer status) {
        PageHelper.startPage(pageNum, pageSize);

        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(status);

        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);

        List<OrderVO> orders = new ArrayList<>();

        if(page!=null &&page.size()>0) {
            for(Orders order : page){
                List<OrderDetail> orderDetailList =orderDetailMapper.getByQueryId(order.getId());

                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(order,orderVO);
                orderVO.setOrderDetailList(orderDetailList);

                orders.add(orderVO);

            }
        }
        return new PageResult(page.getTotal(),orders);
    }

    /**
     * @Description : 查询订单详情
     *  * @param id
     * @Return : com.sky.result.Result<com.sky.vo.OrderVO>
     */
    @Override
    public OrderVO details(Long id) {
        Orders orders = orderMapper.getById(id);
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders,orderVO);
        List<OrderDetail> orderDetailList = orderDetailMapper.getByQueryId(orders.getId());
        orderVO.setOrderDetailList(orderDetailList);
        return orderVO;
    }

    /**
     * @Description : 取消订单
     *  * @param id
     */
    @Override
    public void userCancelById(Long id) throws Exception {
        Orders orders = orderMapper.getById(id);
        if(orders==null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if(orders.getStatus() >2){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }


        Orders order = new Orders();
        order.setId(orders.getId());
        if(orders.getStatus().equals(Orders.TO_BE_CONFIRMED)){
//            weChatPayUtil.refund(
//                    orders.getNumber(),
//                    orders.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01)
//            );
            order.setPayStatus(Orders.REFUND);
        }

        order.setStatus(Orders.CANCELLED);
        order.setCancelReason("用户取消");
        order.setCancelTime(LocalDateTime.now());
        orderMapper.update(order);
    }

    /**
     * @Description : 再来一单
     *  * @param id
     */
    @Override
    public void orderAgainById(Long id) {
        Long userId = BaseContext.getCurrentId();
        List<OrderDetail> orderDetailList = orderDetailMapper.getByQueryId(id);
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(x -> {
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(x, shoppingCart, "id");
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCart.setUserId(userId);
            return shoppingCart;
        }).collect(Collectors.toList());
        shoppingCartMapper.insertBatch(shoppingCartList);

    }

    /**
     * @Description : 搜索订单
     *  * @param ordersPageQueryDTO
     * @Return : com.sky.result.Result<com.sky.result.PageResult>
     */
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);
        List<OrderVO> orderVOList = getOrderVOList(page);
        return new PageResult(page.getTotal(),orderVOList);
    }

    private List<OrderVO> getOrderVOList(Page<Orders> page) {
        List<OrderVO> orderVOList = new ArrayList<>();
        List<Orders> ordersList = page.getResult();
        if(!CollectionUtils.isEmpty(ordersList)){
            for(Orders order : ordersList){
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(order,orderVO);
                String orderDishes = getOrderDishesStr(order);
                orderVO.setOrderDishes(orderDishes);
                orderVOList.add(orderVO);
            }
        }
        return orderVOList;
    }

    private String getOrderDishesStr(Orders order) {
        List<OrderDetail> list =orderDetailMapper.getByQueryId(order.getId());
        List<String> resultList=list.stream().map(x->{
            String res=x.getName()+"*"+x.getNumber()+";";
            return res;
        }).collect(Collectors.toList());
        return String.join("",resultList);
    }

    /**
     * @Description : 获取各状态订单数量
     *  * @param
     * @Return : com.sky.result.Result<com.sky.vo.OrderStatisticsVO>
     */
    @Override
    public OrderStatisticsVO getOrderStatistics() {
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        orderStatisticsVO.setConfirmed(orderMapper.countStatus(Orders.CONFIRMED));
        orderStatisticsVO.setDeliveryInProgress(orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS));
        orderStatisticsVO.setToBeConfirmed(orderMapper.countStatus(Orders.TO_BE_CONFIRMED));
        return orderStatisticsVO;
    }

    /**
     * @Description : 接单
     *  * @param ordersConfirmDTO
     * @Return : com.sky.result.Result
     */
    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersConfirmDTO,orders);
        orders.setStatus(Orders.CONFIRMED);
        orderMapper.update(orders);
    }

    /**
     * @Description : 拒单
     *  * @param ordersRejectionDTO
     * @Return : com.sky.result.Result
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {
        Orders orders = orderMapper.getById(ordersRejectionDTO.getId());

        if(!orders.getStatus().equals(Orders.TO_BE_CONFIRMED) || orders == null){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Integer payStatus = orders.getPayStatus();
        if (payStatus == Orders.PAID){
//            weChatPayUtil.refund(
//                    orders.getNumber(),
//                    orders.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01)
//            );
        }
        Orders orders1 = new Orders();
        orders1.setId(orders.getId());
        orders1.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders1.setStatus(Orders.CANCELLED);
        orders1.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders1);
    }

    /**
     * @Description : 取消订单
     *  * @param ordersCancelDTO
     * @Return : com.sky.result.Result
     */
    @Override
    public void cancel(OrdersCancelDTO ordersCancelDTO) throws Exception {
        Orders orders = orderMapper.getById(ordersCancelDTO.getId());

        if(orders.getPayStatus().equals(Orders.PAID)){
/*            weChatPayUtil.refund(
                    orders.getNumber(),
                    orders.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01)
            );*/
        }
        Orders orders1 = new Orders();
        orders1.setId(ordersCancelDTO.getId());
        orders1.setCancelTime(LocalDateTime.now());
        orders1.setCancelReason(ordersCancelDTO.getCancelReason());
        orders1.setStatus(Orders.CANCELLED);
        orderMapper.update(orders1);
    }

    /**
     * @Description : 派送订单
     *  * @param id
     * @Return : com.sky.result.Result
     */
    @Override
    public void deliveryById(Long id) {
        Orders orders = orderMapper.getById(id);

        if(orders==null||!orders.getStatus().equals(Orders.CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders1 = new Orders();
        orders1.setId(orders.getId());

        orders1.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orderMapper.update(orders1);
    }

    /**
     * @Description : 完成订单
     *  * @param id
     * @Return : com.sky.result.Result
     */
    @Override
    public void complete(Long id) {
        Orders orders = orderMapper.getById(id);
        if(orders==null||!orders.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders1 = new Orders();
        orders1.setId(orders.getId());
        orders1.setDeliveryTime(LocalDateTime.now());
        orders1.setStatus(Orders.COMPLETED);
        orderMapper.update(orders1);
    }

    @Override
    public void reminderById(Long id) {
        Orders orders = orderMapper.getById(id);
        if(orders==null){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Map map = new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号："+orders.getNumber());
        String jsonString = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(jsonString);
    }
}
